Apparatus for continuously making vulcanized articles



July 4, 1950 2,513,781

APPARATUS FOR CONTINUOUSLY MAKING VULCANIZED ARTICLES G. E. BERGGREN 2Sheets-Sheet 1 'Filed Dec. 6, 1947 lNl/EN'TOR 6.5. BE RGGRE N BYATTORNEY July 4, 1950 G. E. BERGGREN APPARATUS FOR CONTINUOUSLY MAKINGVULCANIZED ARTICLES 2 Sheets-Sheet 2 Filed Dec. 6, 1947 mu mm \m o 00 0O00 O O O 0 0000 v 0000 on m 9 $00080 bk wk E /7 INVENTOR G. E. BERG GRENATTORNEY Patented July 4, 19 50 N TED STATES PATENT OFF-ICE APPARATUSFORCONTINUOUSLY MAKING VULCANIZED ARTICLES 3leorge E. Berggren,Baltimore. Md., assignor to Western Ele'zctric Company, Incorporated,Newv o N; Y,,a corporation of New York Q Application members, 1947,-Serial No. 790,109 v I I I I I I. This inventionrelates to apparatus fortinuously making vulcanized articles,,and more particularly to apparatusfor straining debris.

from fluids flowing out of vulcani zing tubes.

In the manufacture of articles having vu1 canized coverings aroundfilamentary cores, such cores are sometimes passed through an extruderwhichextrudes coveringsof vulcanizable material thereovezgand then. are,pa ssed'through a vulcanizing tube into which steam is introduced underhigh pressure to vulcanize the coverings- Such apparatusis-sometimestprovided with a pressure cooling j and sealing unitpositioned in tandem with the vulcanizing tube into which unit.

cold Water under pressure is introduced to cool the article and toprevent the escape ofsteam from the vulcanizing tube; Whena drain pipeisconnected to the, vulcanizing tube near the cooling and sealing unittodrain condensate from the vulcanizable tube and. any water entering thevulcanizing tubefrom the. cooling and seal-,

ingtube, it is essential that such drainagewater andcondensatebestrained toprevent clogging of the drain pipe bywdebris, in thevulcanizing tube. In the past,-,thereq has been no strainer; which wouldstrainthecondensate without clog-y ging, and when. the .strainer clogsthere is great danger of flooding the vulcanizing tube with condensateand Water trom the cooling and sealing unit.

An object of the invention is to provide new and improved apparatus forcontinuously mak.-:

ing vulcanizing articles. Aiurther object of. the invention isto providenew and improved non-cloggable apparatus .for.

ment thereof; when read inconjunction with the appended drawings, inwhichz' i r a I Fig. 1 is a fragmentary side elevation of a portion ofan apparatusillustrating'certain features of the invention; V

Fig. 2 is an enlarged vertical "section taken along line 2--2 of Fig. 1;

Fig. 3 is an enlarged fragmentary vertical section taken along line 3-3of Fig. 2, and,

Fig. 4 is an enlarged fragmentary vertical section taken along line 4-4of Fig. 3.

i j 3'Claims. (Cl. 18 12) protective covering 10. (Fig. 1) aroundiafi1amen-- and 18 to a takeup reel 2|.

Referring now in detailto the drawings there is shown therein acontinuous extruding and vulcanizing machine for forming and vulcanizinga tary core H to form afilamentary article l2. In forming the coveringupon the'core II, the core is advanced continuously from a supply reel.M at a high rate of speed by a supply capstan l5, and is advancedcontinuously by the takeup capstan 20 from'the supply capstan 15 aroundsheaves" thereover.

The supply capstan l5, theextruder 22 and the takeup capstan 20 aredisclosed and claimed in copending application Serial No. 697,809, filedSeptember 8; 1946 by DD. Jones for Apparatus for Covering Cores. y,

The. resulting filamentary article passes into the vulcanizing tube 23which has steam under a high pressure supplied thereto by a steam pipe25, whereby the covering of the vulcanizablecompound is vulcanized as itis advanced through the vulcanizing tube. The resulting article l2passes from the vulcanizing tube into and through a chamber 26 formed intherighthand end of a hollow casting 29 of a pressure cooling andsealing unit 21, as viewed-in Fig. 3, and through the cooling andsealing unit 21 to a cooling trough 28 towhich cold water issupplied.The chamber 26 forms a continuationof and communicates with: the,vulcanizing tube; ;,A supply pipe 32 supplies coldpwater under highpressure to the cooling and sealing.unitgandawdrain pipe '34 drains the:water from the cooling and sealing unit. w I

The cooling and sealing unit 2'! is substantially identical with thatdisclosed and claimed in copending application Serial No. 749,826,filed-May 22, 1947, by G. EQBerggren-and L. W. Lovett for Apparatusfor'Continuously-Making Vulcanized which is threaded into the tappedbore 4'8 and connects the bore 48 to a steam trap of conventional design(not shown).

As the core II is arcuaite 'sl'ots- 'l'fi lt formedin the locking ringfree-to pass through the strainer;

j perforations 5l-5I therein is provided with a counterbore 52 intowhich an inner cylindrical backing plate 54 fits. The backing plate 54is provided with perforations 55 -56 and annular 5 ribs 58-52; forspacing the baclsingplatesfill. and

5d apart to provide space for a cylindricat'screen- The backing plate 50is provided with arcuate lugs, of which an arcuate lug 85 is showrr,which are designed to fit into: arcuateslots,;;ei which an arcuate slot62 is shown, formed lockingring 64 and a wall 66 of the casting 29. Thebacking plates and thescre'en may-be slid to the left, as viewed in Fig.3, after rotating the plate 50 to a position in which the arcuate' lugs60-60 correspond with eneningszfifie-te;

formed in the locking ring 54. l

A gland in is provided with arcuate lugslI-lt (Figs. 2 and 3), which:are designed to enter 2O 54'; The gland 121 also m'ay'b'e rotatedfronrthe 1 position inwhich is shown in Fig. 2 to: move, the arcuate lugs:Me-I4 along a-rcuate: grooves: I lee-l5. into; alignment.' with: arcuate(signin s.

l18 l8;, which are aligned; with: the arcuate opem ines Eta-58'. y a-ll' erv s q' ock land mixing chamber 26' for cleaning, debris. out. of

the. backing plate 5.4 and the screen a d for 40 stringing, the core Mthrough the apparatus.

p mfinn- In the operation" ofthe apparatus described" hereinabove, thecovered article I2 is-advanced from the vulcanizing tube 25*- intoand-through" the chamber 26, the backingplate 54 and I the gland 18 intothe interior of-the casting 29 Any water flowing into the chamber 2 6:3through the gland l0; and steam condensate flowing from-the vulcanizingtubei-nto the-chamber, are draiinem through-the backing plate- 51L,-thescreene5'9 anct' the backing plate 5'4 'intofthe: annular? groove;

4 j 46, from which they new throughthe opening-- 48 into the drain"pipe. 49:: to a.steam-"trap.- (not: shown). No. debris: which carried:intorthe chamber 26;:by the; covered articlei l2 and settles: on thebacking plate 54 and the screen 59315; permitted to enter the-manifold40v Sin e" th backing plates, 50; and 54 andthe screenin re cylindrical,the'debris collectedon thepIateBQ: and the screen never, clogs; theentire' areas: thereof and thewater and steam arealways- Theabove-described strainer is substantially; non-cloggableand may:beeasily assembledland disassembled for cleaning Sincethe, p1ates 50rand 54'. and the screen 59, are cylindrical they are substantiallynon-.cloggable and waterandl. steam may passthroughportionsoff strainingareas thereof even if the plate. 54 and. the screen,

p are partially clogged by a debris. accumulated thereon.

' serving to in 4 What is claimed is: 1. A continuous extrusion andvulcanization apparatus, which comprises a tube provided with a socketin one end thereof coaxial with the remainder thereof, a drain 'pipeconnected transversely to the socket, a generally cylindrical strainerhavinga, locking element formed thereon and designed to fit into thesocket for separating the drain pipe from the interior of the tube,

"second locking element for engaging the locking element on the gland;

,A continuous extrusion and vulcanization apparatus, which comprises atube provided with a necked down portion, said necked down portionhaving a socket formed coaziall y' therein and; also being provided withanannu fr' pas-- sage coaxial therewithsaid neck'ed ertion also bei ngprovided with a transverse outlet" in communication with the annularpassagea locking ring provided withtwo sets" of lugs and secured againstaxial movement at" one" or the necked down portion a; eynnenear mar-erprovided with a murmur of lugs and designe to fit into-' the necked downpornen, saidl gs of the-- strainer serving to'interloek with one set oflugs oithelockin' mg; and aibushiiig ing a plurality oflug and desi nerto int one end of the strainersaizrmgs of tne'busm terlock withthe otherset or lilies of thelockin grin g: p

3-. A continuous xtrusion and vulcanization apparatus, which comprisesa-tiibe prov i'ded with a necked downportioms'aidrie'c'ked' downpertio'n having a socketformed coaxially there'i 1 and also beingprovided'with an annular passage coaxial therewith-, said necked d own;portion also: being: provided witli a transverse outlet come"mun'i'cation with the annular paSsage ,--a10cking ring provided with twos'e-ts oi lugs and secured against axial"movementtataonesendi oftnenecke down. portion, a' cylindrical strainer provi' with apluralitp oflugs and designed. to fit. in the. ne'ckeddowri'portion, said; lugsofthestrain'er serving to interlock with one set of lugs ofthe locking:ring, a blushing having atphll-faility of lugs" and; designed tofitilint'flf one: end" of thestrainer, said lugs of the; bushinglservingtoi interlock"withithe other Set at lugs of theflocki ng ring, andmeansfor' preventing rotatiori' of the. strainera and the; bus-hing withrespect to the tube.

GEORGE-n. BERGGR-Enr REFERENCES or En.

The fol-lowingreferences ar'e' of record in the file of this patent:

UNITED sTA' fiSPATENTS? 580,870 France c v Nov; is; 19 24

